催化表面物理化学的模型体系研究
摘要
Surface physical chemistry studies of catalysts aim to understand the surface structure-activity relation and the reaction mechanism of heterogeneous catalytic reaction at the molecular level for the improvement and design of efficient catalysts. It is difficult to unambiguously correlate the catalytic activity with the structure for powder catalyst because of its structural complexity and un-uniformity. Therefore, model catalysts with uniform and well-defined structures have been always employed for the surface physical chemistry studies of catalysts. In this paper, I review the research concept and the recent progress that has been achieved in surface physical chemistry studies of model systems for heterogeneous catalysis in my research group. We have innovated model catalysts from the traditional single crystals/single crystal thin films to nanocrystals with uniform and well-defined structures for the surface physical chemistry studies for targeted heterogeneous catalytic system. Our research concept might achieve the fundamental understanding of the surface structure-activity relation and the reaction mechanism of the practical heterogeneous catalytic reaction at the molecular level.